Dione (buwan)

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Dione
PIA19650-SaturnMoon-Dione-20150817.jpg
Dione viewed by Cassini just before its final close flyby on August 17, 2015 - Saturn and its rings are in the background.
Pagkatuklas
Natuklasan niGiovanni Cassini
Natuklasan noongMarch 21, 1684
Designasyon
Ibang designasyonSaturn IV
Pang-uriDionean
Orbital characteristics
Semi-major axis377396 km
Eccentricity0.0022[1]
Orbital period2.736915 d[1]
Inclination0.019° (to Saturn's equator)
Satellite ofSaturn
Pisikal na katangian
Dimensiyon1128.8 × 1122.6 × 1119.2 km[2]
Mean radius561.4±0.4 km[2]
Pang-ibabaw na sukat3964776.51 km2[3]
Mass(1.095452±0.000168)×1021 kg[4] (3.28×10-4 Earths)
Mean density1.478±0.003 g/cm³[2]
Surface gravity0.233 m/s2
Escape velocity0.51 km/s
Rotation period2.736915 d
(synchronous)
Axial tiltzero
Albedo0.998±0.004 (geometric)[5]
Temperature87 K (−186°C)
Apparent magnitude10.4 [6]

Ang Dione ay isang buwan sa Saturn.

Mga sanggunian[baguhin | baguhin ang batayan]

  1. 1.0 1.1 http://exp.arc.nasa.gov/downloads/celestia/data/solarsys.ssc Naka-arkibo 2005-03-09 sa Wayback Machine. Exp.arc.nasa.gov Retrieved on 05-21-07
  2. 2.0 2.1 2.2 Roatsch, T.; Jaumann, R.; Stephan, K.; Thomas, P. C. (2009). "Cartographic Mapping of the Icy Satellites Using ISS and VIMS Data". Saturn from Cassini-Huygens. pa. 763–781. doi:10.1007/978-1-4020-9217-6_24. ISBN 978-1-4020-9216-9.
  3. Phil Davis? (April 1, 2011). "Solar System Exploration: Planets: Saturn: Moons: Dione: Facts & Figures". NASA. Tinago mula orihinal hanggang October 12, 2012. Kinuha noong March 24, 2013.
  4. Jacobson, R. A.; Antreasian, P. G.; Bordi, J. J.; Criddle, K. E.; Ionasescu, R.; Jones, J. B.; Mackenzie, R. A.; Meek, M. C.; Parcher, D.; Pelletier, F. J.; Owen, Jr., W. M.; Roth, D. C.; Roundhill, I. M.; Stauch, J. R. (December 2006). "The Gravity Field of the Saturnian System from Satellite Observations and Spacecraft Tracking Data". The Astronomical Journal. 132 (6): 2520–2526. Bibcode:2006AJ....132.2520J. doi:10.1086/508812.
  5. Verbiscer, A.; French, R.; Showalter, M.; Helfenstein, P. (9 February 2007). "Enceladus: Cosmic Graffiti Artist Caught in the Act". Science. 315 (5813): 815. Bibcode:2007Sci...315..815V. doi:10.1126/science.1134681. PMID 17289992. Kinuha noong 20 December 2011. (supporting online material, table S1)
  6. Observatorio ARVAL (April 15, 2007). "Classic Satellites of the Solar System". Observatorio ARVAL. Tinago mula orihinal hanggang 2011-08-25. Kinuha noong 2011-12-17.



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